#define  _CRT_SECURE_NO_WARNINGS



#include<stdio.h>


int main()
{
	double n = 0;
	char arr[100] = { 0 };
	scanf("%lf %s", &n, arr);
	printf("please input a number:\nplease input a string:\n%.2lf\n%s\n", n, arr);

	return 0;
}